Inventory locatorItems api is giving null while getting all the records

We are trying to fetch the on-hand quantity available at a specific locator within a subinventory. For this purpose, we tested the "Get all locatorItems" REST API under Inventory Management, but it is returning a null response.

However, we have already verified that the item is associated with the locator in our Inventory Management setup.

URL:

https://xxxxxxxxx/fscmRestApi/resources/11.13.18.05/locatorItems?q=OrganizationCode=2xx

Response:

{    "items": [],    "count": 0,    "hasMore": false,    "limit": 25,    "offset": 0,    "links": [        {            "rel": "self",            "href": "xxxxxx:443/fscmRestApi/resources/11.13.18.05/locatorItems",            "name": "locatorItems",            "kind": "collection"        }    ]}